cd "_______________"
// Uses merged dataset produced in subfolder "merge_1"
use "PM10_locoff_merge_alt.dta", clear

merge 1:1 city_chinese year name using secretary_aft_vars
drop if _merge==2
drop _merge
merge 1:1 city_chinese year mayor_name using mayor_aft_vars
drop if _merge==2
drop _merge

save PM10_locoff_befandaft_merge_alt, replace
